It creates target/release/libmozjpeg_sys.a and target/release/libmozjpeg_sys.{dll,so,dylib}, which can be linked with C and other languages.

By default nasm_simd feature is enabled, and this crate will try to compile SIMD support. Additionally, you can set TARGET_CPU environmental variable (equivalent to -march=$TARGET_CPU) to optimize all of C code for a specific CPU model.